OptionalarrowsOne-way arrows drawn on roads, in roads.
OptionalexitMotorway exit number badges, in roadLabels.
OptionalrestrictedDashed marking of roads with restricted access, in roads.
OptionalunderRoads under construction, in roads.
The parts of the roads BaseMapModule shows or hides on their own, finer than the layer groups: the granularity TomTom's style designers chose as toggle-worthy. Unset, a part is drawn as the style ships it.